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Finding the Fourth Proportional to 7,117.74, 10,603.54 and 6,797.89

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Solution

The fourth proportional to 7,117.74, 10,603.54 and 6,797.89 is: 10,127.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.74 : 10,603.54 = 6,797.89 : x
  2. Step 2: Convert to fraction form
    7,117.74/10,603.54 = 6,797.89/x
  3. Step 3: Cross multiply
    7,117.74x = 10,603.54 × 6,797.89
  4. Step 4: Simplify right side
    7,117.74x = 72,081,720.28
  5. Step 5: Solve for x
    x = 72,081,720.28/7,117.74
  6. Step 6: Final answer
    x = 10,127.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.